PYQ NEET- The F And D Block Elements L-2

Question: Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.#

Assertion A : Helium is used to dilute oxygen in diving apparatus.

Reason R : Helium has low solubility in $\mathrm{O}_2$.

A) ( $A$ ) is correct but $(R)$ is not correct.

B) $A$ is true but $R$ is false.

C) $A$ is false but $R$ is true.

D) Both $\mathrm{A}$ and $\mathrm{R}$ are true and $\mathrm{R}$ is the correct explanation of $\mathrm{A}$.

Answer: $A$ is true but $R$ is false.#